1.3.0 (08/29/13)

• [oracle] fix structure_dump: column['data_default'] might come back as ''
• [oracle] avoid the JDBC call connection.getMetaData with exec_query (#453)
• review MSSQL/HSQLDB/H2 explain - make sure prepared statements are used
• [oracle] make sure explain works with prepared statements
• warn users about using our now deprecated suble_binds "extension"
• [mysql] username defaults to 'root' on MRI
• [mysql] match columns returned with latest AR 4.0 (collation, strict, extra)
• only suble_binds if not an arel passed + allow to turn bind subling off
• [postgres] fix extension_enabled? to work with raw boolean values
• [derby] setting true/false into text/string columns values should use to_s
  also non-serializable attrs should use to_s (instead of to_yaml) on 3.x
• [derby] needs quote_table_name_for_assignment (on AR 4.0)
• [postgres] driver "hooks" to make PG types work with prepared statements, now
  working: ranges, arrays, interval, (ip) addr types, tsvector, json and uuid
• missing last_insert_id_result method on PostgreSQL (#450)
• emulate pre AR 4.0 behavior with date-times/booleans (in custom SELECTs) they
  will be returned as (raw) strings on AR 3.x
• warn when driver is not JDBC 4.0 compilant when checking if valid (#445)
• fix inline rescue syntax - invalid syntax at MSSQL's string_to_time (#444)
• no need to (double) update LOB values when using prepared statements
• replaced emulate_booleans with emulate_booleans? on adapter specs
• [firebird] emulate booleans with char(1) + fix time and review native types
• [db2] using new update_lob_values - now handles null inserts safely (#430)
• [mssql] configurable update_lob_values? - string_to_binary no longer abused
• refactored SerializedAttributesHelper and moved to Util::SerializedAttributes
  there's now a new update_lob_columns helper hooked onto AR::Base for adapters
  that send clob/blob values in a separate statement DB2, Oracle, MSSQL, Firebird

Code Contributors (in no particular order): @agios